[Django]-How to make Django QuerySet bulk delete() more efficient

For those who are still looking for an efficient way to bulk delete in django, here’s a possible solution:

The reason delete() may be so slow is twofold: 1) Django has to ensure cascade deleting functions properly, thus looking for foreign key references to your models; 2) Django has to handle pre and post-save signals for your models.

If you know your models don’t have cascade deleting or signals to be handled, you can accelerate this process by resorting to the private API _raw_delete as follows:

queryset._raw_delete(queryset.db)

More details in here. Please note that Django already tries to make a good handling of these events, though using the raw delete is, in many situations, much more efficient.

Bulk delete is already part of django

Keep in mind that this will, whenever possible, be executed purely in SQL